Snap molder&#39;s flask



G. E. DICKS SNAP MOLDERS FLASK,

`April 15 1924.

Filed Nov. 25 1922 Patented Apr. 15, 1924.

NITED STATES GEORGE EDWARD DICKS, OF LANGLEY, NEAR BIRMINGHAM, ENGLAND.

SNAP Monnnns rLAsx.

Application led November 25, 1922.

To all whom 'it may concern:

Be it known that I, GEORGE EDWARD Droits, a subject of the King of Great Britain and Ireland, and resident of 11 St. Johns Road, Langley, near Birmingham, England, have invented a new and useful Improvement in Snap Molders Flasks, of which the following is a specification.

This invention relates to an improved construction of snap molders flask which is adjustable in size to suit different sizes of castings which may be required to be moulded therein.

The object of this invention is to provide an improved construction of such adjust able flash which is formed in two main sections hinged together and adapted to be secured by a lever catch. The adjustability of the flask permits a greater variety of work to be moulded in any particular flask, and reduces the number of' sizes required for the equipment of a foundry.

My invention will now be described with reference to the accompanying drawings in which Figure 1 is a plan of an adjustable snap moulding flask constructed according to my invention.

Figure 2 is a side elevation of the same.

Figure 3 is an end view.

Figures 4 and 5 are details showing the method of securing the two portions of the flask together at one corner, and

Figures G and 7 are similar views showingzthe two corners separated.

eferring to the drawings, the flask is formed of two sections 1 and 2 attached together by a hinged connection 3 at one corner, and adapted to be s ecured at the other corner by a lever catch 4.- Each of the sections 1 and 2 comprises an angle piece 5 of channel section and preferably formed slightly hollow on its inner face. These portions may be of cast iron or may be pressed from sheet material or otherwise suitably constructed. They are provided with outwardly projecting flanges 6 at their upper and lower edges, and grooves 7 are provided in the inner face of each of these flanges 6 as will be seen more clearly in Serial No. 603,307.

Figure 5. These grooves 7 form guides in which engage connecting yplates 8 shaped to correspond with the channel forni of the corner pieces 5. These connecting plates are of a suflicient length to project at each l end of the corner piece 5 and serve as connections to the two short sections 9 and 10 which form the other corners of the flask. The two short sections 9 are hinged together at 3 as already described, whilst the `two sections 10 are respectively provided and 10 respectively. Wing nuts 15 are provided on these screwed studs 14 so as to clamp the portions of the flask in any desired position.

rlhe flask may be adjusted in size by slackening the wing nuts 15 and sliding the corner pieces 5 and the sections 9 or 10 thereon so as to increase or decrease the size of the flask. When the parts are set so as to obtain the required size, the wing nuts 15 are again tightened so as to clamp them in position. When the flask is in use it may be opened by swinging the catch 4 about its eye 12 so as to release it from the hook 11. The two sections of the flask may then be opened out about a diagonal s.

line pivoting upon the hinge 3 between the two sections 9. In order to ensure a good joint between the two sections 10 and maintain the parts in correct alignment when the flask is closed, one of these sections 10 is provided with a recess 16 with which a corresponding projection 17 on the other section engages. This recess 16 and the projection 17 are formed with corresponding inclined upper and lower edges 18 and 19 to ensure easy engagement, and a correct fit. Two of the connecting plates 8 are provided with projecting bosses 2O which serve as handles and also as lugs for the reception of registering pins adapted to El l) be inserted in the holes 21 formed therein, so as to register two flasks in position, one upon the other.

An adjust-able snap moulding flask oomprising a pair of corner pieces, a pair of short sections, a hinge connection between these short sections, a second pair of short sections each having one end mitred, re-

leasable fastening means for said sections, 10

the mitred end of one of said sections having a taper sided recess, a (3o-operating taper sided projection upon the mitred end of the other section and adjustable connecting plates for said short sections and corner 15 pieces.

GEORGE EDWARD DICKS. 

